Respuesta :

Answer:

30%, and 55%

Step-by-Step explanation:

12/40=30%

33/60=55%

Answer:

a) 30%,  b) 55%.

Step-by-step explanation:

You multiply the fraction by 100:

a) (12/40) * 100

= 1200/40

= 120/4

= 30%.

b) (33/60) * 100

= 3300/60

= 330/6

= 55%.